Documentation: Refactor footer to match with other plugins
Fix a typo where Buck was used instead of Bazel. Add footer section
that links to plugin's index page as it has been done in other plugins.
Change-Id: Ic4de629a35908e7a4becb9956ca0d13c72c1c321

@@ -82,5 +82,9 @@
./tools/eclipse/project.py ```-More information about Buck can be found in the [Gerrit+More information about Bazel can be found in the [Gerrit documentation](../../../Documentation/dev-bazel.html).++[Back to @PLUGIN@ documentation index][index]++[index]: index.html